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On 02/20/2012 08:16 AM, Shu Ming wrote:
<blockquote cite="mid:4F41E525.4030301@linux.vnet.ibm.com"
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On 2012-2-20 2:02, зоррыч wrote:
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cite="mid:003301ccef30$9d059840$d710c8c0$@megatrone.ru"
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<p class="MsoNormal"><span lang="EN-US">Hi<o:p></o:p></span></p>
<p class="MsoNormal"><span class="hps"><span
style="font-family:"Arial","sans-serif";color:#333333"
lang="EN">I set up</span></span><span class="longtext"><span
style="font-family:"Arial","sans-serif";color:#333333"
lang="EN"> </span></span><span class="hps"><span
style="font-family:"Arial","sans-serif";color:#333333"
lang="EN">two</span></span><span class="longtext"><span
style="font-family:"Arial","sans-serif";color:#333333"
lang="EN"> </span></span><span class="hps"><span
style="font-family:"Arial","sans-serif";color:#333333"
lang="EN">nodes</span></span><span class="longtext"><span
style="font-family:"Arial","sans-serif";color:#333333"
lang="EN"> </span></span><span class="hps"><span
style="font-family:"Arial","sans-serif";color:#333333"
lang="EN">running</span></span><span class="longtext"><span
style="font-family:"Arial","sans-serif";color:#333333"
lang="EN"> </span></span><span class="hps"><span
style="font-family:"Arial","sans-serif";color:#333333"
lang="EN">ovirt</span></span><span class="longtext"><span
style="font-family:"Arial","sans-serif";color:#333333"
lang="EN">.</span></span><span
style="font-family:"Arial","sans-serif";color:#333333"
lang="EN"><br>
<span class="hps">The configuration of</span><span
class="longtext"> </span><span class="hps">both servers</span><span
class="longtext"> </span><span class="hps">is identical
(</span><span class="longtext">node.png).</span><br>
<span class="hps">when you create a</span><span
class="longtext"> </span><span class="hps">virtual
machine to</span><span class="longtext"> </span><span
class="hps">a</span><span class="longtext"> </span><span
class="hps">setting is per</span><span class="longtext">
</span><span class="hps">(</span><span class="longtext">vm.png).
</span><span class="hps">It runs</span><span
class="longtext"> </span><span class="hps">successfully.</span><br>
<span class="hps">If</span><span class="longtext"> </span><span
class="hps">the setting</span><span class="longtext"> </span><span
class="hps">"Number of CPU</span><span class="longtext">
</span><span class="hps">Cres</span><span class="longtext">,"
</span><span class="hps">set to</span><span
class="longtext"> </span><span class="hps">3</span><span
class="longtext"> </span><span class="hps">(1</span><span
class="longtext"> </span><span class="hps">Socket (s),</span><span
class="longtext"> </span><span class="hps">3</span><span
class="longtext"> </span><span class="hps">Core (s) per
Socket) (</span><span class="longtext">fail.png) - </span><span
class="hps">VM</span><span class="longtext"> </span><span
class="hps">will not start.</span><span class="longtext">
</span><span class="hps">ovirt</span><span
class="longtext"> </span><span class="hps">error:</span><br>
<span class="hps">“Cannot run VM.</span><span
class="longtext"> </span><span class="hps">There are no
available running Hosts with enough cores in VM's
Cluster.”</span><br>
<span class="hps">Why not?</span><br>
<br>
<span class="hps">Do I understand correctly</span><span
class="longtext"> </span><span class="hps">that the
value of</span><span class="longtext"> </span><span
class="hps">(1</span><span class="longtext"> </span><span
class="hps">Socket (s),</span><span class="longtext"> </span><span
class="hps">3</span><span class="longtext"> </span><span
class="hps">Core (s) per Socket)</span><span
class="longtext"> </span><span class="hps">means 3</span><span
class="longtext"> </span><span class="hps">virtual</span><span
class="longtext"> </span><span class="hps">CPU on</span><span
class="longtext"> </span><span class="hps">a</span><span
class="longtext"> </span><span class="hps">physical</span><span
class="longtext"> </span><span class="hps">processor
core</span><span class="longtext"> </span><span
class="hps">nodes</span><span class="longtext">?</span><br>
<span class="hps">Number of CPU</span><span
class="longtext"> </span><span class="hps">Cres</span><span
class="longtext">: </span><span class="hps">2 (2</span><span
class="longtext"> </span><span class="hps">Socket (s),</span><span
class="longtext"> </span><span class="hps">1</span><span
class="longtext"> </span><span class="hps">Core (s) per
Socket) -</span><span class="longtext"> </span><span
class="hps">the virtual machine</span><span
class="longtext"> </span><span class="hps">is started</span><span
class="longtext"> </span><span class="hps">successfully</span><br>
<span class="hps">Number of CPU</span><span
class="longtext"> </span><span class="hps">Cres</span><span
class="longtext">: 4 (2 </span><span class="hps">Socket
(s),</span><span class="longtext"> </span><span
class="hps">2</span><span class="longtext"> </span><span
class="hps">Core (s) per Socket) -</span><span
class="longtext"> </span><span class="hps">error.</span><br>
<span class="hps">Number of CPU</span><span
class="longtext"> </span><span class="hps">Cres</span><span
class="longtext">: 2 (1 </span><span class="hps">Socket
(s),</span><span class="longtext"> </span><span
class="hps">2</span><span class="longtext"> </span><span
class="hps">Core (s) per Socket) -</span><span
class="longtext"> </span><span class="hps">the
successful launch</span></span><span lang="EN-US"><o:p></o:p></span></p>
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<pre wrap="">_______________________________________________
Users mailing list
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</pre>
</blockquote>
The number of active VMs is bigger than the physical cores in the
host.<br>
</blockquote>
<br>
This is not an accurate statement. You could run, for example, 5
single vCPU VMs on a 4 core hypervisor.<br>
Y.<br>
<br>
<blockquote cite="mid:4F41E525.4030301@linux.vnet.ibm.com"
type="cite"> <br>
<pre class="moz-signature" cols="72">--
Shu Ming <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:shuming@linux.vnet.ibm.com"><shuming@linux.vnet.ibm.com></a>
IBM China Systems and Technology Laboratory</pre>
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<pre wrap="">_______________________________________________
Users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Users@ovirt.org">Users@ovirt.org</a>
<a class="moz-txt-link-freetext" href="http://lists.ovirt.org/mailman/listinfo/users">http://lists.ovirt.org/mailman/listinfo/users</a>
</pre>
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